Title:
【発明の名称】後置絞りのトリプレットレンズ
Document Type and Number:
Japanese Patent JP2871021
Kind Code:
B2
Inventors:
OSHIKIRI MINORU
Application Number:
JP19016990A
Publication Date:
March 17, 1999
Filing Date:
July 18, 1990
Export Citation:
Assignee:
ORINPASU KOGAKU KOGYO KK
International Classes:
G02B9/16; G02B13/18; (IPC1-7): G02B13/18; G02B9/16
Domestic Patent References:
JP61272710A | ||||
JP60162217A | ||||
JP429417B1 |
Attorney, Agent or Firm:
Hiroshi Nirazawa (7 outside)